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Topographic map of the island of Bawean in the Java Sea, with terrain shown by contour lines, and mountains labelled with their heights. Villages, forests (heavy, light, teakwood) and crops (coconut, coffee, alang-alang, rice, bamboo) are marked.

This map of Billiton (Belitung, Indonesia) features details of the island’s mining operations: blue borders divide the island into five mining districts, within which mines are represented by red crosses with an identifying number.

Rivers and crops are the focus of this map of the northeast coast of Sumatra. Forests and wetlands are marked, as are alang-alang, coconut, pepper, nutmeg and tobacco. Roads are shown as suitable for infantry and light artillery, or for horse riding.

Map of the coastline of the bay of Batavia (Jakarta) showing the extension of the port’s pier (in red, labelled CD), the sand and mud bank and bathymetry (sea depth) in the bay, and notes regarding changes in tide levels over the years.